(19)
(11) EP 0 993 060 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.03.2004 Bulletin 2004/11

(43) Date of publication A2:
12.04.2000 Bulletin 2000/15

(21) Application number: 99118326.0

(22) Date of filing: 15.09.1999
(51) International Patent Classification (IPC)7: H01M 8/04, H01M 8/06, B60L 11/18
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 02.10.1998 JP 28166698
01.02.1999 JP 2382999

(71) Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Aichi-ken 471-8571 (JP)

(72) Inventors:
  • Motozono, Yoshikazu, c/o Toyota Jidosha K. K.
    Toyota-shi, Aichi-ken, 471-8571 (JP)
  • Yamashita, Masashi, c/o Toyota Jidosha K. K.
    Toyota-shi, Aichi-ken, 471-8571 (JP)
  • Nagamiya, Kiyomi, c/o Toyota Jidosha K. K.
    Toyota-shi, Aichi-ken, 471-8571 (JP)
  • Yamaoka, Masaaki, c/o Toyota Jidosha K. K.
    Toyota-shi, Aichi-ken, 471-8571 (JP)
  • Maeda, Iwao, c/o Toyota Jidosha K. K.
    Toyota-shi, Aichi-ken, 471-8571 (JP)

(74) Representative: Winter, Brandl, Fürniss, Hübner, Röss, Kaiser, Polte Partnerschaft 
Patent- und Rechtsanwaltskanzlei Alois-Steinecker-Strasse 22
85354 Freising
85354 Freising (DE)

   


(54) Fuel cell control apparatus and method of controlling fuel cell using control apparatus


(57) A fuel cell control apparatus for controlling the supply amount of oxidizing gas to a fuel cell (1) for producing electric energy by reaction between fuel gas and oxidizing gas includes a smoother (15) for smoothing the output related quantity of the fuel cell, and an oxidizing gas feed determining device (15) for determining the supply amount of the oxidizing gas on the basis of the output related quantity smoothed by the smoother (15), and therefore when controlling the amounts of the fuel gas and oxidizing gas depending on the output demand of the fuel cell, the substantial power generation efficiency is enhanced and the output is stabilized at the same time.






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